Photos is a new and different program and if you approach it assuming that it is iPhoto you will continue to be frustrated - it does have a learning curve and it does have different work flows - but as we all know different does not equate to inferior - in fact it often means things are improved
Photos is still an annoyance IMO. For instance this idea to force pictures into timings/locations together, often with absurd names that you cannot change is vastly inferior to the old system of rolls where you could regroup action over a couple of days and give a meaningful name. It would be fine if it was a geolocation/time view but it's forced down your throat. Not nice.
With Photos you do that using albums - selecting Photos and adding them to albums is pretty much identical to moving photos among events - if fact it may be quicker and easier - and Rolls have not been around for over eight years - they were last used in iPhoto 6 - events replaced Rolls in iPhoto '08 - in Photos moments replace events
And you are not at all forces to use Moments any more than you were forces to use events - they are a default, automatic organization and if they do no suit you then you can use albums, smart albums and folders and build any organization you like -- Personally I mush prefer Photos and moments/collections/years are much better than either rolls or events were - I no longer am forced to use albums since moments do what I like and need -
Of course this then gets us a bit off piste but I still don't understand why a company with the vast resources of Apple has done its best to sabotage its pro apps and to dumb down its iWork apps to the point where you can longer use them for 'advanced amateur' or 'small business' utilisation. We were told functionality would return as iOS versions matured - it hasn't been the case at all.
No one except Apple knows and speculation on their policies is not allowed here - but if you look at their business and see that they have built the largest company in the world and sell the most used camera in the world I think you will see that with Photos the integration of the iPhone, Mac and IOS devices is a major innovation (and does not benefit from Pro features - it is a giant consumer market and Apple does extremely well in it - even the advanced amateurs here love the integration - for example for me it makes life so much easier - on world wide trips I take my iPhone, iPad, a digital camera and a MBA and pretty much download photos to the MBA daily form teh camera and have it and the IOS devices on WiFi at night do they sync - then all of this syncs back to my large iMac at home and when I get home all of my photos are there and backed up and organized to the extent tha tI do organization while on the road - for me this a one giant improvement over bringing 2000 to 3000 photos home form a trip and spending weeks importing and organization them
And while Photos is not and is not intended to be a pro program it comes closer to meeting pro needs than iPhoto ever did
But real pros they need pro software and Apple simply was not competitive with LR and other pro products so they dropped Aperture and enhanced Photos - and from the announcements it sounds like OS X Sierra will continue that path with many more enhancements
LN